100-(8×8:8)
=100-(64:8)
=100-8
=92
(10+13)+(36:9-21:7)
=23+(4-3)
=23+1
=24
(5×4)+(45-2×3×6×0)
=20+(45-6×0)
=20+(45-0)
=20+45
=65
24+(100-9:9-5×10)
=24+(100-1-50)
=24+(99-50)
=24+49
=73
5×(10:10×10)+(8×3-23)
=5×(1×10)+(24-23)
=5×10+1
=50+1
=51
48+(93-90)×9+(24:3×0)
=48+3×9+0
=48+27
=75
24:8×3×4:6
=3×12:6
=3×2
=6
(24+6×2):4+7-(28-12:3):6
=(24+12):4+7-(28-4):6
=36:4+7-24:6
=9+7-4
=16-4
=12
(54:6×3-6×2):3
=(9×3-12):3
=(27-12):3
=15:3
=5
(4×8+3×9+21):10:(40-9×4)
=(32+27+21):10:(40-36)
=80:10:4
=8:4
=2